Railroad motor-car truck.



O. H. HOWARD.

RAILROAD MOTOR CAR TRUCK.

APPLIGATION FILED MAR.6,1909.

926,189. h Patented June 29, 19o9.

vertical longitudinal section through the end CLARENCE H. HOWARD, 0F ST.LOUS, MISSOURI.

, Ransom) Morea-een annex.

No'. 926,1sa

Specification of Letters Patent.

Patented June 29, 1909.

Application filed March 6, 1909. Serial No. 481,705.

To all whom 'it may concern:

Be it known that I, CLARENCE H. HOWARD, a citizen of the United States,residing at .St. Louis, in the State of 'Missouri, have invented a newand useful Improvement in Railroad MotonCar Trucks, of which thefollowing is a specification.

My invention relates particularly to the side frames of a railroadmotor-car truck and to the means for connecting the motorbed thereto,and is in the nature of a modification of my invention for which I havemade application for Letters Patent of the United States February 26,1909, Serial Number Ll80,130, for improvement in railroad motor-eartrucks, and my invention has for its obj-ect to provide a strong, rigid,and durable trucl{frame, and to increase the efficiency and stability ofthe truck by applying the motive power longitudinally through the upperportion or compression members of the side frames and thereby enable thesaid frames to be made of greater depth with the same amount of materialwhile maintaining the normal height of the motorbed from the railroadtrack.

The invention consists in features of novelty as hereinafter describedand claimed, reference being had to the accompanying drawing formingpart of this specification, whereon,

Figure 1, is a to plan view of the side frames and connectlng members ofmy improved motor-car truck; Fig. 2, a side elevation thereof; Fig. 3, avertical transverse section to enlarged scale, through the motor bedforming one of the`said members, on line 3, 3, in Fig. l, showing `itsconnection with the corresponding side frame (seen in side elevationbroken away), and Fig. el, a

portion of the motor-bed at its junction and intersection with tho-sideframe, on line 4, et, in Fig. 1.

Like letters and numerals of reference denote like parts in all thefigures.

a represents the two opposite side frames of my improved motor-car truckwhich are connected together at and adjacent to the rear side of thebolster' b (indicated by dotted lines in Fig. l) by the preferablychannel-shaped transverse member or transom c, and at and adjacent tothe front side of the bolster b by the motor-bed d which is used in lieuof the ordinary transverse member the usual chafing or transom on thisside of the bolster, the transverse connecting membersc and all beingformed with suitable projections 1 for plates in en a Vement withcorresponding plates on the o ster I), and with the usual anger brackets2, while the side frames a are connected together at their front vendsby the preferably channelshaped transverse member e, all the said parts,namely, the side frames a and the transverse connecting members c, d,and e, being preferably composed of cast steel cintegral throughout andhaving, preferably, suitable corner gussets or reinforcing horizontalwebs, 4.-, and .5, at the junctions ofthe said members respectively,with the side frames a.

The motor-bed cl on which the gasolene engine or other suitable motor ismounted and fixed in the' usual Well-knownma'nner,

is in the present case preferably, concave' or trou h-shaped in crosssection, of suitable widt and depth, and extends lengthwise between andpreferably, intersects the upper portion or compression members of theside frames a, the top of the motor-bed@ being preferably, flush withthe top of the side frames a.

Across and preferably, integral With the motor-bed l at suitableintervals along the same, are formed a series of upright webs orbrackets 6 havin respectively, a bearing 7 for the driving s aft of themotor not shown), the bearings 7 being arrange in longitudinal alinementwith each other transversely to the truck and having their longitudinalcenter preferably in the horizontal plane of the upper portion orcompression members of the side frames a.

By the above construction in which the `motorbed cl is integral with,and forms a part of the compression members of the side frames, deeperand stronger side frames can be used with the same amount of material,and by applying the motive power from the drive shaft of the motorlongitudinally through the compression members of the side frames asnear as practicable to the railroad track, combined with the bracingofthe side frames by their connecting transverse members integrallyunited therewith, a strong, rigid, and durable structure is obtained andthe eiiiciency and stability of the truck insured.

f are suitably shaped openings formed transversely through each sideframe av for receiving the equalizer-springs (not shown) Within the bodyof the frame below its top member, whereby suficient clearance isinsured between the top of the frame a and the car-body, the top wall ofeach opening j' having a spring-seat 8 preferably integral therewith.

What I claim as my invention and desire to secure byLetters Patent is l.In a railroad motor-car truck, the combination with the side framesthereof, of the. motor-bedadapted to connect the said frames togethertransversely to the truck, and integral therewith, substantially asdescribed.

2. In a railroad motor-car truck, the combination with the yside framesthereof, of the motor-bed, and a transom, adapted respectively, toconnect the said frames together transversely to the truck and integraltherewith, substantially as described.

3. In a railroad motor-car truck, the combination with the side framesthereof, of the motor-bed, and a front member, adapted respectively, toconnect the said frames together transversely to the truck, and integralE therewith, substantially as described.

truck, and integral therewith, substantially as described. Y

5. In a railroad motor-car truck, the combination with the side framesthereof, of the motor-bed adapted to form a part of the compressionmembers of the saidY frames and integral therewith, substantially asdescribed.

6. In a railroad motor-car truck, the combination with the side, framesthereof, of the motor-bed adapted to intersect the compression membersof the said frames and integral therewith, substantially as described.

7. In a railroad motor-car truck, the combination with the side framesthereof, of the motor-bed, and a transom, adapted respectively, toconnect the said frames together transversely to` the truck and integraltherewith, the said bed intersecting the compression members of the saidframes, substantially as described.

8. In a railroad m'otor-cartruck, the combination. with the side framesthereof, of the motor-bed adapted to connect the said frames togethertransversely to the truck and integral therewith, the said bed havingcorner gussets at its junctions with the said 4. Ina railroad motor-cartruck, the combination with the side frames thereof, of themotor-bed, atransom, and a front member, adapted respectively, to connect the saidframes together transversely to the i i i l frames, substantially asdescribed.

CLARENCE H. HOWARD.

lVitnesses:

C. T. WESTLAKE,

EDWARD W. FURRELL.

